High-level changes from IDNA2003 in the "current work"

YAO Jiankang yaojk at cnnic.cn
Mon Mar 10 15:32:54 CET 2008

----- Original Message ----- 
From: "Paul Hoffman" <phoffman at imc.org>
To: <idna-update at alvestrand.no>
Sent: Friday, March 07, 2008 7:02 AM
Subject: High-level changes from IDNA2003 in the "current work"

> Hi again. It would be useful for those coming in late to have a 
> summary of what changes are embodied in the current set of documents. 
> Here's my first take on such a list. If people like this format, it 
> could be used as the beginning of an outline for the BoF/WG.
> a) Update base character set from Unicode 3.2 to Unicode 5.0 or 5.1
> b) Disallow most symbol characters
> c) Remove the mapping and normalization steps from the protocol and 
> have them instead done by the applications themselves, possibly in a 
> local fashion, before invoking the protocol
> d) Change the way that the protocol specifies which characters are 
> allowed in labels from "humans decide what the table of codepoints 
> contains" to "decision about codepoints are based on Unicode 
> properties plus a small exclusion list created by humans"
> e) Allowing typical words and names in languages such as Dhivehi and 
> Yiddish to be expressed
> f) Make bidirectional domain names (delimited strings of labels, not 
> just labels standing on their own) display in a non-surprising fashion
> g) Make bidirectional domain names in a paragraph display in a 
> non-surprising fashion
> Is the list a fair categorization? Should more items be added? 

how about adding  h) dot separator discussion? 

YAO Jiankang

> some items be removed?
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